The foundation for everything.
A flexible rubber base designed to grip the natural nail, smooth out imperfections, and create the perfect base for builder application. Self-levelling, easy to control, and built for long-lasting adhesion without bulk.
Works seamlessly under every Flexi Build shade — because it was made to.
HEMA and TPO-free rubber base gel designed for maximum adhesion and flexibility. Ideal for natural nail prep, overlays, and as a base for builder gel systems. Self-levelling formula for smooth, even application with long-lasting wear.
Flexi Base - Clear HEMA and TPO-free Rubber Base Gel
Birthday Sale 2026
Acrylates Copolymer, Hydroxypropyl Methacrylate, Isobornyl Acrylate, N-dimethylacrylamide, Phosphoric Acid, Bis (methacryloyloxyethyl), Hydrogen Phosphate, Citronello, Dimethicone Hydroxycyclohexyl Phenyl Ketone, Ethyl Trimethylbenzoyl Phenylphosphinate.
Prep the natural nail by removing non-living tissue and gently refining the surface with a 180 grit file or sanding band. The goal is to remove shine — not create deep scratches.
Remove dust and cleanse the nail (we recommend our Sanitising Prep Spray), then dehydrate using a nail dehydrator. An acid-free primer is optional but recommended.
Apply a thin layer of Flexi Base and cure for 60 seconds (or 90 seconds on low heat mode).Apply Flexi Build in 2–3 thin layers to build structure and achieve your desired opacity. Cure each layer for 60 seconds (or 90 seconds on low heat mode).
Always cure using a high-quality 365–405nm UV/LED lamp. For best results, we recommend the LumiCURE Pro.
